What is a Double Bass?

A double bass, also known as a contrabass or upright bass, is the largest and lowest-pitched instrument in the string family commonly used in orchestras and ensembles. It typically has four thick strings tuned to E, A, D, and G, producing deep and resonant tones that form the foundation of the musical harmony. The instrument can be played by drawing a bow across the strings or by plucking them with the fingers, a technique known as pizzicato.

Because of its large size, the double bass is played while standing or seated on a tall stool. The instrument rests on the floor using a metal endpin while the player presses the strings against the fingerboard with the left hand to change pitch. The right hand either controls the bow or plucks the strings, depending on the musical style and performance technique.

The double bass is widely used in orchestras, jazz ensembles, and many modern music genres. In classical music, it provides the deep foundation for the string section, while in jazz and other styles it often plays walking basslines that support the rhythm and harmony of the music. Today, the double bass remains an essential instrument known for its powerful low tones and important role in musical arrangements.